A:
Positive:
1 x 12569837 x 17956913 x 9669119 x 6615791 x 13813133 x 9451247 x 5089727 x 1729
Negative:
-1 x -1256983-7 x -179569-13 x -96691-19 x -66157-91 x -13813-133 x -9451-247 x -5089-727 x -1729
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 1,256,983, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 1,256,983 | |
| -1 | -1,256,983 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,256,983.
Example:
1 x 1,256,983 = 1,256,983
and
-1 x -1,256,983 = 1,256,983
Notice both answers equal 1,256,983
With that explanation out of the way, let's continue. Next, we take the number 1,256,983 and divide it by 2:
1,256,983 ÷ 2 = 628,491.5
If the quotient is a whole number, then 2 and 628,491.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,256,983 | |
| -1 | -1,256,983 |
Now, we try dividing 1,256,983 by 3:
1,256,983 ÷ 3 = 418,994.3333
If the quotient is a whole number, then 3 and 418,994.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,256,983 | |
| -1 | -1,256,983 |
Let's try dividing by 4:
1,256,983 ÷ 4 = 314,245.75
If the quotient is a whole number, then 4 and 314,245.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,256,983 | |
| -1 | 1,256,983 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 19 | 91 | 133 | 247 | 727 | 1,729 | 5,089 | 9,451 | 13,813 | 66,157 | 96,691 | 179,569 | 1,256,983 |
| -1 | -7 | -13 | -19 | -91 | -133 | -247 | -727 | -1,729 | -5,089 | -9,451 | -13,813 | -66,157 | -96,691 | -179,569 | -1,256,983 |
Here are some more numbers to try:
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